Base | Representation |
---|---|
bin | 111101010010100… |
… | …010110000110001 |
3 | 2122122212120211210 |
4 | 331102202300301 |
5 | 4101214134103 |
6 | 250011230333 |
7 | 34324106040 |
oct | 7522426061 |
9 | 2578776753 |
10 | 1028271153 |
11 | 488483378 |
12 | 2484483a9 |
13 | 135058290 |
14 | 9a7ca557 |
15 | 60417e03 |
hex | 3d4a2c31 |
1028271153 has 32 divisors (see below), whose sum is σ = 1695511552. Its totient is φ = 539784000.
The previous prime is 1028271137. The next prime is 1028271157. The reversal of 1028271153 is 3511728201.
It is not a de Polignac number, because 1028271153 - 24 = 1028271137 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1028271153.
It is not an unprimeable number, because it can be changed into a prime (1028271157) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48678 + ... + 66528.
It is an arithmetic number, because the mean of its divisors is an integer number (52984736).
Almost surely, 21028271153 is an apocalyptic number.
1028271153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
1028271153 is a deficient number, since it is larger than the sum of its proper divisors (667240399).
1028271153 is a wasteful number, since it uses less digits than its factorization.
1028271153 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18085.
The product of its (nonzero) digits is 3360, while the sum is 30.
The square root of 1028271153 is about 32066.6673198198. The cubic root of 1028271153 is about 1009.3362802683.
Adding to 1028271153 its reverse (3511728201), we get a palindrome (4539999354).
The spelling of 1028271153 in words is "one billion, twenty-eight million, two hundred seventy-one thousand, one hundred fifty-three".
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